Remove useless `test_supports_primary_key`

there aren't any instance method defined in this class

Consolidate duplicated elsif branch

`supports_primary_key?` method is defined in `AbstractAdapter` so does
not raise any errors.

Ensure the support works like form_with.

Has the handy effect of making the initial examples in the form_with
docs work too.

Had to do some finagling such that form_with's without a scope didn't
wrap their names in braces ala `[title]`.

Remote is gone, long live local.

By using `except` any option provided to `form_with` would become an html
attribute unless explicitly opted out. This proved annoying when adding
new internal keys in the options hash and seeing them pop up in the html
output.

Prevent this by inverting the `except` to `slice` out the keys we want to
allow becoming html attributes, like id and class.

Fix rake guides:generate:kindle error

Fix Fixnum deprecated warning in Ruby 2.4+

Simplify the regex for `unsigned?` method

Improve clarity of AJ tests output

* How to disable scaffolds.scss in generators.md

* Improves workflow customization text in generators.md

Add missing option on number helper

The `delimiter_pattern` option was not present on the documentaion of
the helper.

Change ActiveModel::Type::Helpers to :nodoc: [ci skip] 

Docs Command Line Arguments for Generators

Throw friendly error message when fixture is not a hash

Coffee script 1.12.1 was released and contained a bug where coffee
script was undefined. 1.12.1 was yanked and 1.12.2 was released. This
bumps coffee-script-source so that CI Railties tests pass.

See: https://github.com/jashkenas/coffeescript/issues/4403

Support double-yield inside an around callback

Right now, when fixture is not a Hash we throw an error message
saying "fixture is not a hash". This is not very user friendly because
it's not saying which fixture is invalid.

fix QueryCache nil dup

make sql statements frozen

dup if arel is not our string

expect runtime error

dont wrap runtime error in invalid

log errors will now be treated as runtime errors

update changelog

Avoid invalid attribute on local forms generated by `form_with`

It's questionable whether this is a good thing -- it forces any later/
inner callback to handle multiple invocations, along with the actual
wrapped action. But it worked prior to 871ca21f,
so we shouldn't break it unintentionally.

Fixes that the following ERB template would result in invalid HTML
output:

    <%= form_with model: Post.new, local: true do |form| %>
    <% end %>

Specifically, the resulting form tag would have a spurious `remote`
attribute:

    <form remote="false" ...>

Mention JS Runtime dependency in dev dependencies guide [ci skip].

Fix constantize edge case involving prepend, autoloading and name conflicts

Remove unused method `namespaced_file_path`

In the following situation:

```ruby
class Bar
end

module Baz
end

class Foo
  prepend Baz
end

class Foo::Bar
end
```

Running `Inflector.constantize('Foo::Bar')` would blow up with a NameError.

What is happening is that `constatize` was written before the introduction
of prepend, and wrongly assume that `klass.ancestors.first == klass`.

So it uses `klass.ancestors.inject` without arguments, as a result
a prepended module is used in place of the actual class.

```
$ git grep namespaced_file_path
railties/lib/rails/generators/named_base.rb:        def namespaced_file_path
railties/lib/rails/generators/named_base.rb:          @namespaced_file_path ||= namespaced_class_path.join("/")
```